asymptote/base/palette.asy

362   pen[] Palette;
363   if(n == 0) return Palette;
365   Palette=new pen[n*nintervals];
371     Palette[i]=rgb(1.0,0.0,ininv);
372     Palette[n+i]=rgb(ininv1,0.0,1.0);
373     Palette[2n+i]=rgb(0.0,ininv,1.0);
374     Palette[3n+i]=rgb(0.0,1.0,ininv1);
375     Palette[4n+i]=rgb(ininv,1.0,0.0);
376     Palette[5n+i]=rgb(1.0,ininv1,0.0);
378   return Palette;
390   pen[] Palette;
391   if(n == 0) return Palette;
393   Palette=new pen[n*nintervals+offset];
399     Palette[i]=rgb(ininv1,0.0,1.0);
400     Palette[n+i]=rgb(0.0,ininv,1.0);
401     Palette[2n+i]=rgb(0.0,1.0,ininv1);
402     Palette[3n+i]=rgb(ininv,1.0,0.0);
403     Palette[4n+i]=rgb(1.0,ininv1,0.0);
405   Palette[4n+n]=rgb(1.0,0.0,0.0);
407   return Palette;
424   pen[] Palette;
425   if(n == 0) return Palette;
427   Palette=new pen[NColors];
436       Palette[i]=rgb(ininv1,0.0,1.0);
437       Palette[n+i]=rgb(0.0,ininv,1.0);
438       Palette[2n+i]=rgb(0.0,1.0,ininv1);
439       Palette[3n+i]=rgb(ininv,1.0,0.0);
440       Palette[4n+i]=rgb(1.0,ininv1,0.0);
441       Palette[5n+i]=rgb(1.0,0.0,ininv);
448       Palette[k+i]=rgb(1.0-i*ninv,0.0,1.0);
456       Palette[k+i]=rgb(ininv,0.0,ininv);
457       Palette[k+n3+i]=rgb(third,0.0,third+ininv);
458       Palette[k+n23+i]=rgb(third-ininv,0.0,twothirds+ininv);
466     Palette[k+i]=rgb(0.0,ininv,1.0);
467     Palette[k+n+i]=rgb(0.0,1.0,ininv1);
468     Palette[k+2n+i]=rgb(ininv,1.0,0.0);
469     Palette[k+3n+i]=rgb(1.0,ininv1,0.0);
470     Palette[k+4n+i]=rgb(1.0,ininv,ininv);
472   Palette[k+5n]=rgb(1.0,1.0,1.0);
474   return Palette;
478 pen[] quantize(pen[] Palette, int n)
480   if(Palette.length == 0) abort("cannot quantize empty palette");
482   real step=(Palette.length-1)/(n-1);
484       return Palette[round(i*step)];
498   pen[] Palette=BWRainbow(NColors,true);
499   int n=Palette.length;
502     Palette[i]=i*ninv*Palette[i];
503   return Palette;
523 pen[] cmyk(pen[] Palette)
525   int n=Palette.length;
527     Palette[i]=cmyk(Palette[i]);
528   return Palette;